As someone who's been playing anime fighters for over 10 years now and fighting games since sf2. Yeah not gonna convince me. Specially games that use running.
Like say I wanted to chain low jabs with makoto in BB. F, F, DF+A is going to be less of a custerfuck of hand wizardry than A+B, D+A and keeps both hands in sync with their job of movement and ability queueing for the left, and attacking and ability activation for the right.
Hell it wouldnt even make Micro dashing attacks in GG or BB easier. As the burden of the inputs are now all on one hand which means instead of both hands doing fast inputs at the same time one hand now has to go twice as fast to make up for it.
Sure it's faster on paper and in general, but it's not some super amazing bandaid fix that makes dashing super easy and better that could be tossed in just about anything.
This isn't something I haven't thought about before.